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- Politecnico di Milano
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- Aerospace Engineering
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- STRUCTURAL DYNAMICS AND AEROELASTICITY
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STRUCTURAL DYNAMICS AND AEROELASTICITYOther
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SELF-HEALING MATERIALS Group 151 General definition of self-healing materials Healing mechanisms Biomimetics Applications Conclusions 1 2 3 4 5 2 Self-healing materials are smart materials that can intrinsically repair damage • Longer lifetime • Reduction of inefficiency due to degradation and material failure 1 General definition of self-healing materials 3 Healing efficiency 1 How much does the material retain its physical properties after healing? 𝜂 = 𝐻𝑒𝑎𝑙𝑒𝑑 𝑝𝑟𝑜𝑝𝑒𝑟𝑡𝑦 𝑃𝑟𝑖𝑠𝑡𝑖𝑛𝑒 𝑝𝑟𝑜𝑝𝑒𝑟𝑡𝑦 4 Classification 1 NON AUTONOMIC (𝚫𝑮 > 𝟎) : Require external trigger e.g., heat, light, chemicals AUTONOMIC (𝚫𝑮 < 𝟎) : Do not require any additional external trigger Damage itself is the stimulus 5
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